Chrysovirus

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Chrysovirus
Virus classification
Group: Group III (dsRNA)
Family: Chrysoviridae
Genus: Chrysovirus
Type species
Penicillium chrysogenum virus

Chrysovirus is a genus of viruses. It is the only genus in the family Chrysoviridae.[1] They are class III double stranded RNA viruses which infect fungi, in particular Penicillium. Their name is derived from the Greek word chrysos which means yellow-green. There are currently nine species in this genus including the type species Penicillium chrysogenum virus.[2][3]

Taxonomy[edit]

Group: dsRNA

[2]

Structure[edit]

Viruses in the genus Chrysovirus are non-enveloped, with icosahedral geometries, and T=1, T=2 symmetry. The diameter is around 35-40 nm. Genomes are linear and segmented, around 12.5kbp in length. The genome codes for 4 proteins. The genome has three double stranded RNA segments. All have extended highly conserved terminal sequences at both ends.[2][3]

Genus Structure Symmetry Capsid Genomic arrangement Genomic segmentation
Chrysovirus Icosahedral T=1 Non-enveloped Linear Segmented

Life cycle[edit]

Viral replication is cytoplasmic. Entry into the host cell is achieved by penetration into the host cell. Replication follows the double-stranded RNA virus replication model. Double-stranded RNA virus transcription is the method of transcription. The virus exits the host cell by cell to cell movement. Fungi serve as the natural host.[2][3]

Genus Host details Tissue tropism Entry details Release details Replication site Assembly site Transmission
Chrysovirus Fungi None Cytoplasmic exchange; sporogenesis; Hyphal anastomosis Cytoplasmic exchange; sporogenesis; Hyphal anastomosis Cytoplasm Cytoplasm Cytoplasmic exchange; sporogenesis; Hyphal anastomosis

References[edit]

  1. ^ Ghabrial, SA; Castón, JR; Coutts, RHA; Hillman, BI; Jiang, D; Kim, DH; Moriyama, H; Ictv Report, Consortium (January 2018). "ICTV Virus Taxonomy Profile: Chrysoviridae". The Journal of General Virology. 99 (1): 19–20. doi:10.1099/jgv.0.000994. PMID 29251589.
  2. ^ a b c d "ICTV Online Report Chrysoviridae".
  3. ^ a b c "Viral Zone". ExPASy. Retrieved 15 June 2015.

External links[edit]